uoustool
The answer to your question depends on what you mean by "better than MS
Excel". What are you looking for: business charts, multidimensional charts,
statistical charts, trellis charts, dot plots, parallel coordinate plots?
Excel with "workarounds" is fine for business charts. If you have
multidimensional data, then you may want to consider R.
R is one of the best statistical charting tools, it is free and very
powerful. There is an Excel add-in that lets the user run R from within
Excel. Here's a brief introduction to R's charting.
http://processtrends.com/TOC_R.htm
R is developed and supported by thousands of statisticians worldwide. They
provide high quality packages that add functionality to the basic R package.
You can get the R base system and all packages free from the Comprehensive R
Archival Network (CRAN)
http://cran.r-project.org/ . New packages and
charting tools are added to the R system on an ongoing basis.
Here's a link to an R Graphics Gallery
http://addictedtor.free.fr/graphiques/
Paul Murrel has a very good book on R Graphics. This link shows you the
charts from his book and the R code needed to build them.
http://www.stat.auckland.ac.nz/~paul/RGraphics/rgraphics.html
Hadley Wickham has an R package ggplot/2 that is quite powerful.
http://had.co.nz/ggplot2/
Are you involved with high dimension data? If so, the GGobi may be what you
need.
http://www.ggobi.org/. There is a R package for Ggobi
http://lookingatdata.com/.
If you plan to use advanced charting extensively, then R offers you much
more promise than Excel.
Post back or contact me at my website if you would like more information.
Kelly O'Day
http://processtrends.com